Definition that contains family melanthiaceae
- genus veratrum a genus of coarse poisonous perennial herbs; sometimes placed in subfamily Melanthiaceae
- amianthum muscaetoxicum all parts of plant are highly toxic; bulb pounded and used as a fly poison; sometimes placed in subfamily Melanthiaceae
- zigadenus genus of mostly North American poisonous plants; sometimes placed in family Melanthiaceae
- genus amianthum one species: fly poison; sometimes placed in family Melanthiaceae
- genus xerophyllum small genus of North American herbs having grasslike basal leaves: squaw grass; sometimes placed in family Melanthiaceae
- tofieldia genus of perennial herbs of cool temperate regions; sometimes placed in family Melanthiaceae
- amianthum muscitoxicum all parts of plant are highly toxic; bulb pounded and used as a fly poison; sometimes placed in subfamily Melanthiaceae
- genus narthecium bog asphodels; sometimes placed in family Melanthiaceae
- aletris small genus of bitter-rooted herbs of eastern North America and Asia; sometimes placed in family Melanthiaceae
- genus zigadenus genus of mostly North American poisonous plants; sometimes placed in family Melanthiaceae